i do know many people who would say take away my ganja and i would not wanna live any more :-) but to be serious no one of this people i would call addicted to it. i never heard of something like physical symptoms because someone is not able to smoke it. and on the other side it´s possible to die if you are a real hard core alcohol addict because of withdrawal symptoms.
Yes, that is how one of my brothers died. The other survived DT's and got into AA, but he died later of a brain tumor. They died on the same day, one year apart, September 5, 1989-90.